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NASA Technical Reports Server (NTRS) 19890016988: The geological record of life 3500 Ma ago: Coping with the rigors of a young earth during late accretion
by NASA Technical Reports Server (NTRS)
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Thin cherty sedimentary layers within the volcanic portions of the 3,500 to 3,300 Ma-old Onverwacht and Fig Tree Groups, Barberton Greenstone belt, South Africa, and Warrawoona Group, eastern Pilbara Block, Western Australia, contain an abundant record of early Archean life. Five principal types of organic and probably biogenic remains and or structures can be identifed: stromatolites, stromatolite detritus, carbonaceous laminite or flat stromalite, carbonaceous detrital particles, and...
Topics: NASA Technical Reports Server (NTRS), FOSSILS, GEOCHRONOLOGY, MICROORGANISMS, MORPHOLOGY,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930085101: Cumulative fatigue damage at elevated temperature
by NASA Technical Reports Server (NTRS)
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Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20150008363: Cold Water Vapor in the Barnard 5 Molecular Cloud
by NASA Technical Reports Server (NTRS)
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After more than 30 yr of investigations, the nature of gas-grain interactions at low temperatures remains an unresolved issue in astrochemistry. Water ice is the dominant ice found in cold molecular clouds; however, there is only one region where cold ((is) approximately 10 K) water vapor has been detected-L1544. This study aims to shed light on ice desorption mechanisms under cold cloud conditions by expanding the sample. The clumpy distribution of methanol in dark clouds testifies to...
Topics: NASA Technical Reports Server (NTRS), WATER VAPOR, COLD WATER, MOLECULAR CLOUDS, ICE, METHYL...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20110012136: Executable Architecture Research at Old Dominion University
by NASA Technical Reports Server (NTRS)
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Executable Architectures allow the evaluation of system architectures not only regarding their static, but also their dynamic behavior. However, the systems engineering community do not agree on a common formal specification of executable architectures. To close this gap and identify necessary elements of an executable architecture, a modeling language, and a modeling formalism is topic of ongoing PhD research. In addition, systems are generally defined and applied in an operational context to...
Topics: NASA Technical Reports Server (NTRS), FORMALISM, ARCHITECTURE (COMPUTERS), COMPUTERIZED SIMULATION,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19720021728: Fourth Annual Earth Resources Program Review. Volume 4: National Oceanic and Atmospheric Administration programs and US Naval Research Laboratory programs
by NASA Technical Reports Server (NTRS)
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Conference of Earth Resources Program with emphasis on analysis of data obtained by aircraft
Topics: NASA Technical Reports Server (NTRS), CONFERENCES, EARTH RESOURCES PROGRAM, REMOTE SENSORS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20160000244: SMOS Soil Moisture Data Assimilation in the NASA Land Information System: Impact on LSM Initialization and NWP Forecasts
by NASA Technical Reports Server (NTRS)
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No abstract available
Topics: NASA Technical Reports Server (NTRS), REMOTE SENSING, METEOROLOGICAL INSTRUMENTS, SOIL MOISTURE,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20150002891: SMOS Soil Moisture Data Assimilation in the NASA Land Information System: Impact on LSM Initialization and NWP Forecasts
by NASA Technical Reports Server (NTRS)
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Land surface models are important components of numerical weather prediction (NWP) models, partitioning incoming energy into latent and sensitive heat fluxes that affect boundary layer growth and destabilization. During warm-season months, diurnal heating and convective initiation depend strongly on evapotranspiration and available boundary layer moisture, which are substantially affected by soil moisture content. Therefore, to properly simulate warm-season processes in NWP models, an accurate...
Topics: NASA Technical Reports Server (NTRS), SOIL MOISTURE, OCEANOGRAPHIC PARAMETERS, ASSIMILATION,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20080009741: Corrosion Prevention of Cold Rolled Steel Using Water Dispersible Lignosulfonic Acid Doped Polyaniline
by NASA Technical Reports Server (NTRS)
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The invention provides coatings useful for preventing corrosion of metals. The coatings comprise a film-forming resin and conductive polymers comprising linearly conjugated x-systems and residues of sulfonated lignin or a sulfonated polyflavonoid or derivatives of solfonated lignin or a sulfonated polyflavonoid. The invention also provides a latex formulation of the coatings, and articles of manufacture comprising a metal substrate and a coating in contact with the metal substrate.
Topics: NASA Technical Reports Server (NTRS), COLD ROLLING, CORROSION PREVENTION, DOPED CRYSTALS, LIGNIN,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930091207: Experimental research on air propellers V
by NASA Technical Reports Server (NTRS)
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In previous reports on experimental research on air propellers, by W. F. Durand and E. P. Lesley, as contained in the National Advisory Committee for Aeronautics reports nos. 14, 30, and 64, the investigations were made progressively and each without reference to results given in preceding reports and covering only information relating to forms perhaps adjacent in geometrical form and proportion. This report is a review of the entire series of results of the preceding reports with a view of...
Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19980017382: Building Multi-Discipline, Multi-Format Digital Libraries Using Clusters and Buckets. Degree rewarded by Old Dominion Univ. on Aug. 1997
by NASA Technical Reports Server (NTRS)
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Our objective was to study the feasibility of extending the Dienst protocol to enable a multi-discipline, multi-format digital library. We implemented two new technologies: cluster functionality and publishing buckets. We have designed a possible implementation of clusters and buckets, and have prototyped some aspects of the resultant digital library. Currently, digital libraries are segregated by the disciplines they serve (computer science, aeronautics, etc.), and by the format of their...
Topics: NASA Technical Reports Server (NTRS), DIGITAL SYSTEMS, WORLD WIDE WEB, INFORMATION SYSTEMS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19970027947: Research Related to Multi Degree of Freedom Magnetic Suspensions. Degree awarded by Old Dominion Univ. Aug. 1997
by NASA Technical Reports Server (NTRS)
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This thesis covers the activities associated with (1) recommissioning of the 6-inch Magnetic Suspension and Balance System (MSBS) and (2) enhancing the Annular Suspension and Pointing System (ASPS). These activities continue the program of research in the multi degree of freedom magnetic suspension program at Old Dominion University. The 6-inch MSBS is a large gap magnetic suspension system used as a model support and balance system in wind tunnels. The first stage of recommissioning of the...
Topics: NASA Technical Reports Server (NTRS), MAGNETIC SUSPENSION, ANNULAR SUSPENSION AND POINTING SYSTEM,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930093117: Thermodynamic Data for the Computation of the Performance of Exhaust-gas Turbines
by NASA Technical Reports Server (NTRS)
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Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930091744: Airfoil section data obtained in the NACA variable-density tunnel as affected by support interference and other corrections
by NASA Technical Reports Server (NTRS)
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The results of an investigation of the effect of support interference on airfoil drag data obtained in the variable-density tunnel are presented. As a result of the support interference, previously published airfoil data from the variable-density tunnel have shown too large drag coefficients and too large a rate of increase of drag coefficients and too large a rate increase of drag coefficients with airfoil thickness. The practical effect of the corrections on the choice of the optimum section...
Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20110010894: X-48B Phase 1 Flight Maneuver Database and ICP Airspace Constraint Analysis
by NASA Technical Reports Server (NTRS)
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The work preformed during the Summer 2010 by Peter Fast. The main tasks assigned were to update and improve the X-48 Flight Maneuver Database and conduct an Airspace Constraint Analysis for the Remotely Operated Aircraft Area used to flight test Unmanned Arial Vehicles. The final task was to develop and demonstrate a working knowledge of flight control theory.
Topics: NASA Technical Reports Server (NTRS), AIRSPACE, FLIGHT TEST VEHICLES, AIRCRAFT MANEUVERS, REMOTELY...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930091685: Tests of related forward-camber airfoils in the variable-density wind tunnel
by NASA Technical Reports Server (NTRS)
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A recent investigation of numerous related airfoils indicated that positions of camber forward of the usual location resulted in an increase of the maximum lift. As an extension of this investigation, a series of forward-camber airfoils has been developed, the members of which show airfoil characteristics superior to those of the airfoils previously investigated. The primary object of this report is to present fully corrected results for airfoils in the useful range of shapes. With the data...
Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20070031760: Analysis of Eddy Current Capabilities for the Detection of Outer Diameter Stress Corrosion Cracking in Small Bore Metallic Structures
by NASA Technical Reports Server (NTRS)
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The use of eddy current techniques for the detection of outer diameter damage in tubing and many complex aerospace structures often requires the use of an inner diameter probe due to a lack of access to the outside of the part. In small bore structures the probe size and orientation are constrained by the inner diameter of the part, complicating the optimization of the inspection technique. Detection of flaws through a significant remaining wall thickness becomes limited not only by the...
Topics: NASA Technical Reports Server (NTRS), EDDY CURRENTS, NONDESTRUCTIVE TESTS, DAMAGE, AIRCRAFT...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19720026320: A selective list of acronyms and abbreviations
by NASA Technical Reports Server (NTRS)
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The third revision to the list of acronyms and abbreviations generally used at the John F. Kennedy Space Center is presented. It contains more than 9900 entries.
Topics: NASA Technical Reports Server (NTRS), CAPE KENNEDY LAUNCH COMPLEX, SPACE GLOSSARIES, SYMBOLS
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930084434: Method and tables for determining the time response to a unit impulse from frequency-response data and for determining the fourier transform of a function of time
by NASA Technical Reports Server (NTRS)
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Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19800019370: Applications of satellite data relay to problems of field seismology
by NASA Technical Reports Server (NTRS)
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A seismic signal processor was developed and tested for use with the NOAA-GOES satellite data collection system. Performance tests on recorded, as well as real time, short period signals indicate that the event recognition technique used is nearly perfect in its rejection of cultural signals and that data can be acquired in many swarm situations with the use of solid state buffer memories. Detailed circuit diagrams are provided. The design of a complete field data collection platform is...
Topics: NASA Technical Reports Server (NTRS), DATA COLLECTION PLATFORMS, RELAY SATELLITES, SATELLITE...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20110013004: Life Support and Habitation Systems: Crew Support and Protection for Human Exploration Missions Beyond Low Earth Orbit
by NASA Technical Reports Server (NTRS)
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The National Aeronautics and Space Administration (NASA) has recently expanded its mission set for possible future human exploration missions. With multiple options there is interest in identifying technology needs across these missions to focus technology investments. In addition to the Moon and other destinations in cis-lunar space, other destinations including Near Earth Objects and Mars have been added for consideration. Recently, technology programs and projects have been re-organizing to...
Topics: NASA Technical Reports Server (NTRS), LIFE SUPPORT SYSTEMS, HABITATS, SAFETY FACTORS, SPACECRAFT...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19750011106: TRW vortex-lattice method subsonic aerodynamic analysis for multiple-lifting-surfaces (N. surface) TRW program number HA010B
by NASA Technical Reports Server (NTRS)
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The program was designed to provide solutions of engineering accuracy for determining the aerodynamic loads on single- or multiple-lifting-surface configurations that represent vehicles in subsonic flight, e.g., wings, wing-tail, wing-canard, lifting bodies, etc. The preparation is described of the input data, associated input arrangement, and the output format for the program data, including specification of the various operational details of the program such as array sizes, tape numbers...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC LOADS, COMPUTER PROGRAMS, LIFTING BODIES, VORTEX...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20120006554: Biological Technologies for Life Beyond Low Earth Orbit (BT4LBLEO): Study Introductions and Synopsis
by NASA Technical Reports Server (NTRS)
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The study will address the following mission concerns: -Extended human presence in the environments of deep space as well as the Moon and Mars will require a solid biological understanding of the integrated effects of diminished gravity, enhanced radiation, and transit- and destination-specific variables from the sub-cellular to the whole organism level. -Biological and associated technologies for biological and robotic precursor missions to realize future objectives for space colonization....
Topics: NASA Technical Reports Server (NTRS), LOW EARTH ORBITS, ROBOTICS, MANNED SPACE FLIGHT,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20150001884: Pharmacokinetic Modeling of Intranasal Scopolamine in Plasma Saliva and Urine
by NASA Technical Reports Server (NTRS)
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An intranasal gel dosage formulation of scopolamine (INSCOP) was developed for the treatment of Space Motion Sickness (SMS). The bioavailability and pharmacokinetics (PK) were evaluated under IND (Investigational New Drug) guidelines. The aim of the project was to develop a PK model that can predict the relationships among plasma, saliva and urinary scopolamine concentrations using data collected from the IND clinical trial protocol with INSCOP. Twelve healthy human subjects were administered...
Topics: NASA Technical Reports Server (NTRS), HYOSCINE, SAMPLING, BLOOD PLASMA, SALIVA, URINE, MOTION...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20080006657: Nitric Acid Particles in Cold Thick Ice Clouds Observed at Global Scale: Link with Lightning, Temperature, and Upper Tropospheric Water Vapor
by NASA Technical Reports Server (NTRS)
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Signatures of nitric acid particles (NAP) in cold thick ice clouds have been derived from satellite observations. Most NAP are detected in the Tropics (9 to 20% of clouds with T less than 202.5 K). Higher occurrences were found in the rare mid-latitudes very cold clouds. NAP occurrence increases as cloud temperature decreases and NAP are more numerous in January than July. Comparisons of NAP and lightning distributions show that lightning is the main source of the NOx, which forms NAP in cold...
Topics: NASA Technical Reports Server (NTRS), ICE CLOUDS, LIGHTNING, NITRIC ACID, TROPICAL REGIONS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19780016056: Stirling engine design manual
by NASA Technical Reports Server (NTRS)
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This manual is intended to serve both as an introduction to Stirling engine analysis methods and as a key to the open literature on Stirling engines. Over 800 references are listed and these are cross referenced by date of publication, author and subject. Engine analysis is treated starting from elementary principles and working through cycles analysis. Analysis methodologies are classified as first, second or third order depending upon degree of complexity and probable application; first order...
Topics: NASA Technical Reports Server (NTRS), ENGINE DESIGN, ENGINE TESTS, STIRLING CYCLE, STIRLING...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20140003796: Pharmacokinetic Modeling of Intranasal Scopolamine in Plasma Saliva and Urine
by NASA Technical Reports Server (NTRS)
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An intranasal gel formulation of scopolamine (INSCOP) was developed for the treatment of Space Motion Sickness. The bioavailability and pharmacokinetics (PK) were evaluated under the Food and Drug Administration guidelines for clinical trials with an Investigative New Drug (IND). The aim of this project was to develop a PK model that can predict the relationship between plasma, saliva and urinary scopolamine concentrations using data collected from the IND clinical trial with INSCOP.
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, HYOSCINE, MOTION SICKNESS, HUMAN BEINGS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20050215326: Fabrication of 3-D Photonic Band Gap Crystals Via Colloidal Self-Assembly
by NASA Technical Reports Server (NTRS)
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The behavior of photons in a Photonic Crystals, PCs, is like that of electrons in a semiconductor in that, it prohibits light propagation over a band of frequencies, called Photonic Band Gap, PBG. Photons cannot exist in these band gaps like the forbidden bands of electrons. Thus, PCs lend themselves as potential candidates for devices based on the gap phenomenon. The popular research on PCs stem from their ability to confine light with minimal losses. Large scale 3-D PCs with a PBG in the...
Topics: NASA Technical Reports Server (NTRS), COLLOIDS, CRYSTALS, ENERGY GAPS (SOLID STATE), FABRICATION,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20110015044: High-Power Fiber Lasers Using Photonic Band Gap Materials
by NASA Technical Reports Server (NTRS)
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High-power fiber lasers (HPFLs) would be made from photonic band gap (PBG) materials, according to the proposal. Such lasers would be scalable in the sense that a large number of fiber lasers could be arranged in an array or bundle and then operated in phase-locked condition to generate a superposition and highly directed high-power laser beam. It has been estimated that an average power level as high as 1,000 W per fiber could be achieved in such an array. Examples of potential applications...
Topics: NASA Technical Reports Server (NTRS), HIGH POWER LASERS, SPONTANEOUS EMISSION, PHASE LOCKED...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20130011784: Overview of the MISSE 7 Polymers and Zenith Polymers Experiments After 1.5 Years of Space Exposure
by NASA Technical Reports Server (NTRS)
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As part of the Materials International Space Station Experiment 7 (MISSE 7), two experiments called the Polymers Experiment and the Zenith Polymers Experiment were flown on the exterior of the International Space Station (ISS) and exposed to the low Earth orbit (LEO) space environment for 1.5 years. The Polymers Experiment contained 47 samples, which were flown in a ram or wake flight orientation. The objectives of the Polymers Experiment were to determine the LEO atomic oxygen erosion yield...
Topics: NASA Technical Reports Server (NTRS), INTERNATIONAL SPACE STATION, LOW EARTH ORBITS, EARTH ORBITAL...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19750007443: SD approved space shuttle program acronyms and abbreviations
by NASA Technical Reports Server (NTRS)
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The list is prepared in two parts: Part 1 is a listing in alphabetical order by abbreviation. Part 2 is a listing of the approved abbreviations listed in alphabetical order by definition.
Topics: NASA Technical Reports Server (NTRS), SPACE SHUTTLES, SYMBOLS, WORDS (LANGUAGE), ABBREVIATIONS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19730015128: Long life assurance study for manned spacecraft long life hardware. Volume 3: Long life assurance studies of components
by NASA Technical Reports Server (NTRS)
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The guidelines for selecting hardware to be used in manned spacecraft to obtain a five year operational lifetime without maintenance were developed. An analysis was conducted on the design, application, failure mechanisms, manufacturing processes and controls, screen and burn-in techniques, and quality control of hardware items. The equipment considered for evaluation include: (1) electric motors and bearings; (2) accelerometers; (3) gyroscopes and bearings; (4) compressors and pumps, (5)...
Topics: NASA Technical Reports Server (NTRS), ACCELEROMETERS, ELECTRIC EQUIPMENT, GYROSCOPES, MECHANICAL...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19770026104: Essays on the History of Rocketry and Astronautics: Proceedings of the Third Through the Sixth History Symposia of the International Academy of Astronautics, Volume 2
by NASA Technical Reports Server (NTRS)
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for abstract, see .
Topics: NASA Technical Reports Server (NTRS), HISTORIES, ROCKET ENGINE DESIGN, ROCKET PROPELLANTS, SOLID...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19930091037: Carburetor Design - a Preliminary Study of the State of the Art
by NASA Technical Reports Server (NTRS)
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gasoline engines used in aeronautic, marine and land transportation service.
Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19730024175: A selective list of acronyms and abbreviations
by NASA Technical Reports Server (NTRS)
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A glossary of acronyms, abbreviations, initials, code words, and phrases used at the John F. Kennedy Space Center is presented. The revision contains more than 12,100 entries.
Topics: NASA Technical Reports Server (NTRS), CAPE KENNEDY LAUNCH COMPLEX, DICTIONARIES, TERMINOLOGY,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20150021046: Aura OMI Observations of Global SO2 and NO2 Pollution from 2005 to 2013
by NASA Technical Reports Server (NTRS)
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The Ozone Monitoring Instrument (OMI), a NASA partnership with the Netherlands and Finland, flies on the NASA Aura satellite and uses reflected sunlight to measure the two critical atmospheric trace gases: nitrogen dioxide (NO2) and sulfur dioxide (SO2) characterizing daily air quality. Both gases and the secondary pollutants they produce (particulate matter, PM2.5, and tropospheric ozone) are USEPA designated criteria pollutants, posing serious threats to human health and the environment...
Topics: NASA Technical Reports Server (NTRS), SATELLITE OBSERVATION, OZONE, AIR POLLUTION, SULFUR DIOXIDES,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20160000356: Exploring NASA OMI Level 2 Data With Visualization
by NASA Technical Reports Server (NTRS)
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Satellite data products are important for a wide variety of applications that can bring far-reaching benefits to the science community and the broader society. These benefits can best be achieved if the satellite data are well utilized and interpreted, such as model inputs from satellite, or extreme events (such as volcano eruptions, dust storms, etc.).Unfortunately, this is not always the case, despite the abundance and relative maturity of numerous satellite data products provided by NASA and...
Topics: NASA Technical Reports Server (NTRS), DATA SYSTEMS, EARTH SCIENCES, GEOPHYSICS, HIGH RESOLUTION,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20150008249: Assessment of OMI Near-UV Aerosol Optical Depth over Land
by NASA Technical Reports Server (NTRS)
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This is the first comprehensive assessment of the aerosol optical depth (AOD) product retrieved from the near-UV observations by the Ozone Monitoring Instrument (OMI) onboard the Aura satellite. The OMI-retrieved AOD by the ultraviolet (UV) aerosol algorithm (OMAERUV version 1.4.2) was evaluated using collocated Aerosol Robotic Network (AERONET) level 2.0 direct Sun AOD measurements over 8 years (2005-2012). A time series analysis of collocated satellite and ground-based AOD observations over 8...
Topics: NASA Technical Reports Server (NTRS), OZONOMETRY, AEROSOLS, OPTICAL THICKNESS, DESERTS, DUST,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19790006309: Briefing Materials for Technical Presentations, Volume B: The LACIE Symposium
by NASA Technical Reports Server (NTRS)
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Tables, charts, and LACIE segments are used to demonstrate the accuracy of estimated crop conditions and yield from 1974 to 1976, and to demonstrate the benefits of meteorological and LANDSAT data. Developments in data acquisition, sampling, and reduction are reviewed. The USDA application test system is highlighted with emphasis on user requirements, technology transfer, data base design, and cost data models for data base operation and management.
Topics: NASA Technical Reports Server (NTRS), AGROCLIMATOLOGY, CANADA, CONFERENCES, CROP GROWTH, GREAT...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 20160005866: Exploring NASA OMI Level 2 Data With Visualization
by NASA Technical Reports Server (NTRS)
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Satellite data products are important for a wide variety of applications that can bring far-reaching benefits to the science community and the broader society. These benefits can best be achieved if the satellite data are well utilized and interpreted, such as model inputs from satellite, or extreme events (such as volcano eruptions, dust storms,... etc.). Unfortunately, this is not always the case, despite the abundance and relative maturity of numerous satellite data products provided by NASA...
Topics: NASA Technical Reports Server (NTRS), SCIENTIFIC VISUALIZATION, SATELLITE OBSERVATION, EARTH...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19820002214: Report on Active and Planned Spacecraft and Experiments
by NASA Technical Reports Server (NTRS)
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Active and planned spacecraft activity and experiments between June 1, 1980 and May 31, 1981 known to the National Space Science Data Center are described. The information covers a wide range of disciplines: astronomy, Earth sciences, meteorology, planetary sciences, aeronomy, particles and fields, solar physics, life sciences, and material sciences. Each spacecraft and experiment is described and its current status presented. Descriptions of navigational and communications satellites and of...
Topics: NASA Technical Reports Server (NTRS), RESEARCH VEHICLES, SPACE PROGRAMS, SPACEBORNE EXPERIMENTS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19710022770: Astronautics and aeronautics, 1969 Chronology on science, technology, and policy
by NASA Technical Reports Server (NTRS)
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Statistical mechanics for wall shear turbulence in Couette flow based on Brownian motion and comparison with stochastic theory based on Navier-Stokes equation
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19830027080: Proceedings of the 14th Annual Precise Time and Time Interval (PTTI) Applications Planning Meeting
by NASA Technical Reports Server (NTRS)
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Developments and applications in the field of frequency and time are addressed. Specific topics include rubidium frequency standards, future timing requirements, noise and atomic standards, hydrogen maser technology, synchronization, and quartz technology.
Topics: NASA Technical Reports Server (NTRS), ATOMIC CLOCKS, FREQUENCY STANDARDS, HYDROGEN MASERS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19780015029: Data systems elements technology assessment and system specifications, issue no. 2. [nasa programs
by NASA Technical Reports Server (NTRS)
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The ability to satisfy the objectives of future NASA Office of Applications programs is dependent on technology advances in a number of areas of data systems. The hardware and software technology of end-to-end systems (data processing elements through ground processing, dissemination, and presentation) are examined in terms of state of the art, trends, and projected developments in the 1980 to 1985 timeframe. Capability is considered in terms of elements that are either commercially available...
Topics: NASA Technical Reports Server (NTRS), DATA PROCESSING EQUIPMENT, DATA SYSTEMS, NASA PROGRAMS,...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19740020114: The hard start phenomena in hypergolic engines. Volume 1: Bibliography
by NASA Technical Reports Server (NTRS)
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A bibliography of reports pertaining to the hard start phenomenon in attitude control rocket engines on Apollo spacecraft is presented. Some of the subjects discussed are; (1) combustion of hydrazine, (2) one dimensional theory of liquid fuel rocket combustion, (3) preignition phenomena in small pulsed rocket engines, (4) experimental and theoretical investigation of the fluid dynamics of rocket combustion, and (5) nonequilibrium combustion and nozzle flow in propellant performance.
Topics: NASA Technical Reports Server (NTRS), COMBUSTION PHYSICS, PROPELLANT COMBUSTION, ROCKET...
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NASA Technical Reports Server (NTRS) 20100011004: Development and Life Prediction of Erosion Resistant Turbine Low Conductivity Thermal Barrier Coatings
by NASA Technical Reports Server (NTRS)
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Future rotorcraft propulsion systems are required to operate under highly-loaded conditions and in harsh sand erosion environments, thereby imposing significant material design and durability issues. The incorporation of advanced thermal barrier coatings (TBC) in high pressure turbine systems enables engine designs with higher inlet temperatures, thus improving the engine efficiency, power density and reliability. The impact and erosion resistance of turbine thermal barrier coating systems are...
Topics: NASA Technical Reports Server (NTRS), THERMAL CONTROL COATINGS, EROSION, COMPUTATIONAL FLUID...
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NASA Technical Reports Server (NTRS) 19800022914: Report on active and planned spacecraft and experiments
by NASA Technical Reports Server (NTRS)
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Information on current and planned spacecraft activity for a broad range of scientific disciplines is presented. The information covers a wide range of disciplines: astronomy, Earth sciences, meteorology, planetary sciences, aeronomy, particles and fields, solar physics, life sciences, and material sciences. These spacecraft projects represent the efforts and funding of individual countries as well as cooperative arrangements among different countries.
Topics: NASA Technical Reports Server (NTRS), INTERNATIONAL COOPERATION, MISSION PLANNING, SPACEBORNE...
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NASA Technical Reports Server (NTRS) 19660014560: High energy propellants - A continuing bibliography, with indexes
by NASA Technical Reports Server (NTRS)
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Annotated bibliography on high energy solid, liquid, and hybrid propellants
Topic: NASA Technical Reports Server (NTRS)
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19670029479: Astronautics and Aeronautics, 1966
by NASA Technical Reports Server (NTRS)
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NASA launchings, space probes, manned space flights, and other space-related and aeronautics events and discoveries in 1966
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19930091108: The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel
by NASA Technical Reports Server (NTRS)
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An investigation of a large group of related airfoils was made in the NACA variable-density wind tunnel at a large value of the Reynolds number. The tests were made to provide data that may be directly employed for a rational choice of the most suitable airfoil section for a given application. The variation of the aerodynamic characteristics with variations in thickness and mean-line form were systematically studied. (author)
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20150001342: OMMYDCLD: a New A-train Cloud Product that Co-locates OMI and MODIS Cloud and Radiance Parameters onto the OMI Footprint
by NASA Technical Reports Server (NTRS)
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Clouds cover approximately 60% of the earth's surface. When obscuring the satellite's field of view (FOV), clouds complicate the retrieval of ozone, trace gases and aerosols from data collected by earth observing satellites. Cloud properties associated with optical thickness, cloud pressure, water phase, drop size distribution (DSD), cloud fraction, vertical and areal extent can also change significantly over short spatio-temporal scales. The radiative transfer models used to retrieve column...
Topics: NASA Technical Reports Server (NTRS), SATELLITE CONSTELLATIONS, SATELLITE OBSERVATION, SCIENTIFIC...
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NASA Technical Reports Server (NTRS) 19810009419: Bibliography of Lewis Research Center Technical Publications announced in 1979
by NASA Technical Reports Server (NTRS)
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This compilation of over 1100 abstracts describes and indexes the technical reporting that resulted from the scientific and engineering work performed and managed by the Lewis Research Center in 1979. All the publications were announced in the 1979 issues of STAR (Scientific and Technical Aerospace Reports) and/or IAA (International Aerospace Abstracts). Research reports, journal articles, conference presentations, patents and patent applications, and theses are included. Subject, author,...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMICS, AERONAUTICAL ENGINEERING, AEROSPACE...
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NASA Technical Reports Server (NTRS) 20150016015: Rooted in Quality: Cultivating Reliability from the Ground Up
by NASA Technical Reports Server (NTRS)
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No abstract available
Topics: NASA Technical Reports Server (NTRS), MANAGEMENT SYSTEMS, INVENTORY MANAGEMENT, MANUFACTURING,...
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NASA Technical Reports Server (NTRS) 19630011050: Direct Contact Among Galactic Civilizations by Relativistic Interstellar Spaceflight
by NASA Technical Reports Server (NTRS)
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Direct contact among galactic populations by relativistic interstellar spaceflight
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19930091540: Determination of the theoretical pressure distribution for twenty airfoils
by NASA Technical Reports Server (NTRS)
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This report gives the theoretical distribution of pressure at lift coefficients of 0, 0.5, 1.0, and 1.5 for 20 airfoils, calculated on the basis of a rigorous potential theory of arbitrary airfoils. It also provides tables from which the characteristics of the airfoils for any angle of attack in 2-dimensional potential flow are readily calculable. The theoretical values of the angles of zero lift, the lift and moment coefficients, and the ideal angles of attack are listed and some comparisons...
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19930081122: Tests of N.A.C.A. airfoils in the variable-density wind tunnel Series 45 and 65
by NASA Technical Reports Server (NTRS)
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This note is one of a series covering an investigation of a number of related airfoils. It presents the results obtained from tests in N.A.C.A. Variable-Density Wind Tunnel of two groups of six airfoils each. One group, the 45 series, has a maximum mean camber of 4 per cent of the chord at a position 0.5 of the chord behind the leading edge, and the other group, the 65 series, has a maximum mean camber of 6 per cent of the chord at the same position. The members within each group differ only in...
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20150003906: Haystack Analysis Center
by NASA Technical Reports Server (NTRS)
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Analysis activities at Haystack Observatory are directed towards improving the accuracy of geodetic measurements, whether these are from VLBI, GNSS, SLR, or any other technique. Those analysis activities that are related to technology development are reported elsewhere in this volume. In this report, a preliminary analysis of the first geodetic sessions with the new broadband geodetic VLBI system is reported.
Topics: NASA Technical Reports Server (NTRS), VERY LONG BASE INTERFEROMETRY, OBSERVATORIES, GEODESY,...
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NASA Technical Reports Server (NTRS) 20150003886: Haystack Observatory VLBI Correlator
by NASA Technical Reports Server (NTRS)
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This report summarizes the activities of the Haystack Correlator during 2012. Highlights include finding a solution to the DiFX InfiniBand timeout problem and other DiFX software development, conducting a DBE comparison test following the First International VLBI Technology Workshop, conducting a Mark IV and DiFX correlator comparison, more broadband delay experiments, more u- VLBI Galactic Center observations, and conversion of RDV session processing to the Mark IV/HOPS path. Non-real-time...
Topics: NASA Technical Reports Server (NTRS), VERY LONG BASE INTERFEROMETRY, RADIO ASTRONOMY, GEODESY,...
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NASA Technical Reports Server (NTRS) 20100040672: Life Support and Habitation Systems: Crew Support and Protection for Human Exploration Missions Beyond Low Earth Orbit
by NASA Technical Reports Server (NTRS)
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Life Support and Habitation Systems (LSHS) is one of 10 Foundational Domains as part of the National Aeronautics and Space Administration s proposed Enabling Technology Development and Demonstration (ETDD) Program. LSHS will develop and mature technologies to sustain life on long duration human missions beyond Low Earth Orbit that are reliable, have minimal logistics supply and increase self-sufficiency. For long duration exploration missions, further closure of life support systems is...
Topics: NASA Technical Reports Server (NTRS), LIFE SUPPORT SYSTEMS, POTABLE LIQUIDS, SPACECRAFT CABINS,...
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NASA Technical Reports Server (NTRS) 20150000708: Satellite Monitoring Over the Canadian Oil Sands: Highlights from Aura OMI and TES
by NASA Technical Reports Server (NTRS)
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Satellite remote sensing provides a unique perspective for air quality monitoring in and around the Canadian Oil Sands as a result of its spatial and temporal coverage. Presented are Aura satellite observations of key pollutants including nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), ammonia (NH3), methanol (CH3OH), and formic acid (HCOOH) over the Canadian Oil Sands. Some of the highlights include: (i) the evolution of NO2 and SO2 from the Ozone Monitoring Instrument...
Topics: NASA Technical Reports Server (NTRS), AMMONIA, CARBON MONOXIDE, FORMIC ACID, METHYL ALCOHOL,...
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NASA Technical Reports Server (NTRS) 20070031129: On the Determination of Poisson Statistics for Haystack Radar Observations of Orbital Debris
by NASA Technical Reports Server (NTRS)
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A convenient and powerful method is used to determine if radar detections of orbital debris are observed according to Poisson statistics. This is done by analyzing the time interval between detection events. For Poisson statistics, the probability distribution of the time interval between events is shown to be an exponential distribution. This distribution is a special case of the Erlang distribution that is used in estimating traffic loads on telecommunication networks. Poisson statistics form...
Topics: NASA Technical Reports Server (NTRS), DEBRIS, POISSON DENSITY FUNCTIONS, RADAR TRACKING,...
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NASA Technical Reports Server (NTRS) 19960021743: Dual-Use Space Technology Transfer Conference and Exhibition. Volume 1
by NASA Technical Reports Server (NTRS)
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This document contains papers presented at the Dual-Use Space Technology Transfer Conference and Exhibition held at the Johnson Space Center February 1-3, 1994. Possible technology transfers covered during the conference were in the areas of information access; innovative microwave and optical applications; materials and structures; marketing and barriers; intelligent systems; human factors and habitation; communications and data systems; business process and technology transfer; software...
Topics: NASA Technical Reports Server (NTRS), AEROSPACE ENGINEERING, BIOTECHNOLOGY, BIOINSTRUMENTATION,...
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NASA Technical Reports Server (NTRS) 20150003927: Haystack Observatory Technology Development Center
by NASA Technical Reports Server (NTRS)
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Technology development at MIT Haystack Observatory were focused on four areas in 2012: VGOS developments at GGAO; Digital backend developments and workshop; RFI compatibility at VLBI stations; Mark 6 VLBI data system development.
Topics: NASA Technical Reports Server (NTRS), VERY LONG BASE INTERFEROMETRY, OBSERVATORIES, TECHNOLOGY...
NASA Network Resource and Training Site
NASA Technical Reports Server (NTRS) 19720008273: NASA thesaurus alphabetical update: Subject terms for indexing scientific and technical information
by NASA Technical Reports Server (NTRS)
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The NASA THESAURUS - ALPHABETICAL UPDATE is an alphabetical listing of all subject terms (postable and nonpostable) that are currently approved for use in the NASA scientific and technical information system. Contained in the listing are the subject terms that were listed in the Preliminary Edition of the NASA THESAURUS and the additional subject terms that were approved during the period January 1, 1967 June 30, 1971. Complete Thesaurus structuring, including scope notes, category assignments,...
Topics: NASA Technical Reports Server (NTRS), DATA MANAGEMENT, HANDBOOKS, INDEXES (DOCUMENTATION), NASA...
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NASA Technical Reports Server (NTRS) 19660024156: Aerospace Medicine and Biology - A continuing bibliography with indexes, June 1966
by NASA Technical Reports Server (NTRS)
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Annotated bibliography on aerospace medicine and biology
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20150018803: Characterization of Encapsulated Corrosion Inhibitors Containing Microparticles for Environmentally Friendly Smart Coatings
by NASA Technical Reports Server (NTRS)
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This poster presents the results obtained from experiments designed to evaluate the release properties, as well as the corrosion inhibition effectiveness, of several encapsulated corrosion inhibitors. Microencapsulation has been used in the development of environmentally friendly multifunctional smart coatings. This technique enables the incorporation of autonomous corrosion detection, inhibition and self-healing functionalities into many commercially available coating systems. Select...
Topics: NASA Technical Reports Server (NTRS), CORROSION PREVENTION, CORROSION, ENCAPSULATING,...
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NASA Technical Reports Server (NTRS) 19930084735: Tables of various Mach number functions for specific-heat ratios from 1.28 to 1.38
by NASA Technical Reports Server (NTRS)
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Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19930091715: The Aerodynamic Characteristics of Full-Scale Propellers Having 2, 3, and 4 Blades of Clark Y and R.A.F. 6 Airfoil Sections
by NASA Technical Reports Server (NTRS)
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Aerodynamic tests were made of seven full-scale 10-foot-diameter propellers of recent design comprising three groups. The first group was composed of three propellers having Clark y airfoil sections and the second group was composed of three propellers having R.A.F. 6 airfoil sections, the propellers of each group having 2, 3, and 4 blades. The third group was composed of two propellers, the 2-blade propeller taken from the second group and another propeller having the same airfoil section and...
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20150000362: Global Assessment of OMI Aerosol Single-scattering Albedo Using Ground-based AERONET and SKYNET Inversions
by NASA Technical Reports Server (NTRS)
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We compare the aerosol single-scattering albedo (SSA) retrieved by the near-UV two-channel algorithm (OMAERUV) applied to the Aura-Ozone Monitoring Instrument (OMI) measurements with an equivalent inversion made by the ground-based Aerosol Robotic Network (AERONET). This work is the first comprehensive effort to globally compare the OMI-retrieved SSA with that of AERONET using all available sites spanning the regions of biomass burning, dust, and urban pollution. An analysis of the co-located...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, ALBEDO, ELECTROMAGNETIC ABSORPTION, NEAR...
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NASA Technical Reports Server (NTRS) 19650015998: Lasers and masers- a continuing bibliography, january 1962 - february 1965
by NASA Technical Reports Server (NTRS)
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Applications of lasers and masers to communication systems, astronomy, optics, and metalworking - bibliography
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20150002111: Fundamental Study of a Single Point Lean Direct Injector. Part I: Effect of Air Swirler Angle and Injector Tip Location on Spray Characteristics
by NASA Technical Reports Server (NTRS)
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Lean direct injection (LDI) is a combustion concept to reduce oxides of nitrogen (NOx) for next generation aircraft gas turbine engines. These newer engines have cycles that increase fuel efficiency through increased operating pressures, which increase combustor inlet temperatures. NOx formation rates increase with higher temperatures; the LDI strategy avoids high temperature by staying fuel lean and away from stoichiometric burning. Thus, LDI relies on rapid and uniform fuel/air mixing. To...
Topics: NASA Technical Reports Server (NTRS), INJECTORS, TURBULENT MIXING, TIPS, POSITION (LOCATION), SPRAY...
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NASA Technical Reports Server (NTRS) 19930091610: Tests in the variable-density wind tunnel of related airfoils having the maximum camber unusually far forward
by NASA Technical Reports Server (NTRS)
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A family of related airfoils having the position of maximum camber unusually far forward was investigated in the variable-density tunnel as an extension of the study recently completed of a large number of related airfoils. The new airfoils gave improved characteristics over those previously investigated, especially in regard to the pitching moment. Some of the new sections are markedly superior to well-known and commonly used sections and should replace them in applications requiring a...
Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 19740020689: Earth Resources Technology Satellite. Cumulative non-US standard catalog, 23 July 1972 - 23 July 1973. Volume 1: Observation ID
by NASA Technical Reports Server (NTRS)
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A catalog containing data pertaining to the imagery acquired by the Earth Resources Technology Satellite (ERTS) from its date of launch, July 23, 1972 through the first year of activity is presented. The catalog supersedes the previous catalog which supplied data available through May 1973. Two listings of the imagery are included: (1) an observation identifications listing and (2) a listing of the imagery based on geographical location, the coordinate listing.
Topics: NASA Technical Reports Server (NTRS), CATALOGS (PUBLICATIONS), EARTH RESOURCES, INDEXES...
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NASA Technical Reports Server (NTRS) 20120002043: The Lobster Mission
by NASA Technical Reports Server (NTRS)
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I will give an overview of the Goddard Lobster mission: the science goals, the two instruments, the overall instruments designs, with particular attention to the wide-field x-ray instrument (WFI) using the lobster-eye-like micro-channel optics.
Topics: NASA Technical Reports Server (NTRS), MICROCHANNELS, X RAY OPTICS, SPACE MISSIONS, X RAYS, DESIGN,...
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NASA Technical Reports Server (NTRS) 19930092582: Measurements of the Flying Qualities of a Supermarine Spitfire VA Airplane
by NASA Technical Reports Server (NTRS)
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Topic: NASA Technical Reports Server (NTRS)
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NASA Technical Reports Server (NTRS) 20090023691: Paris Aviation Salon, 1934
by NASA Technical Reports Server (NTRS)
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This document reviews the Air show held in Paris in 1934. It includes charts and pictures of the aircraft which were from all parts of Europe.
Topic: NASA Technical Reports Server (NTRS)

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